Here in the southwest, we have many many road gangs: landscaping gangs, golf course maintenance gangs, construction gangs, roofing gangs, gangs of all kinds who work all day long under a blistering sun. I know many people who have worked on various gangs from sunup to sundown for thirty years. None wear sunscreen. None get sunburned. None get skin cooties. Their secrets? Among others, they
1. Wear proper clothing. Wide brimmed hats and long sleeved shirts.
2. Drink water constantly to replenish their sweat.
3. Take frequent breaks in the shade.
4. Eat lots of beans, rice, and tortillas. No meat until after sundown.
5. When the sun goes down, they also switch to drinking beer (if they drink beer.)
My yard man (landscaper) is 75 years old. He scoffs at "sun screen"...and he's WHITE. Pale as a ghost.
He and I, and our generation, grew up practically living outdoors under the blistering sun. We didn't HAVE "sunscreen" back then. But we knew how to avoid sunburn. Sure, we got burned sometimes, and had righteous tans ... but no skin cooties.
Some of the aged ones back then got what we called "age spots" (or "liver spots") ... what one might call "skin cancer" now. Oddly, they never had surgery for them, or any other number of ailments. They usually lived to be 90 or more .... and still do.
Medicine is just a racket these days. It does quite well with the current generation.